(sorry in advance for my bad english...)
many people gonna flame me ! But, if i recall properly in FF11 (oh no, not ff11 not again ...), there was the "dynamis", "sea", "sky" stuff,, that kinda forced people to play together in an organized way,
and when you got the chance to have something it was amazing !! (ex shadow ring
http://ffxiclopedia.wikia.com/wiki/Shadow_Ring )
but that stuff was HOLY GOD DAMN HARD to get !!
and when you had those you felt really proud !
in my opinion that is what is missing in FF14, "unique" item, with real instance (im sorry but you cant even compare a "dynamis" with our actual 24 raid stuff)